Last name Buinjac (Buinjac 
) , in the world, is a very rare family name. The family name Buinjac is habitual in Slovenia, where it is a rare surname, Croatia, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Buinjac | Croatia, United States, Slovenia |
| tihomir buinjac Croatian sprinter, HR (b. 1974) |
|